MACROBLOCK MANUFACTURING BY HIP ASSISTED BRAZING METHOD

The aim of this work was to demonstrate the potential of an original t echnology which allows the manufacturing of large size so-called carbo n fibre composite 'macroblock' tube-in-tile components associated with a reliability for a future industrial production. This process includ es the combinations of two techniques: (a) a hot isostatic pressing cy cle to allow intimate contact of a copper tube with a CFC block during all the process; (b) a brazing operation during the HIP cycle to perf orm a good joint between both substrates. Finally, two prototypes have been realized and a non destructive evaluation of the quality of the joint has been carried out.